Refractory and electroconductive ceramic compositions and proces

Details Refractory and electroconductive ceramic compositions and proces Refractory and electroconductive ceramic compositions and proces

1991-02-15

1991-11-26

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

501 96, 501127, 501153, C04B 3558

Patent

active

050682113

ABSTRACT:
Refractory and electroconductive ceramic compositions having a density higher than 4 g/cm.sup.3, ultimate tensile strength higher than 250 MPa, Vickers microhardness higher than 1000 kg/mm.sup.2 and electric resistivity lower than 600 microohm.cm, essentially consisting of alumina and of a nitride component of at least one transition metal belonging to groups IVB, VB or VIB of the Periodic Chart of the Elements.

REFERENCES:
patent: 4518398 (1985-05-01), Tanaka et al.
patent: 4526875 (1985-07-01), Yamamoto et al.
patent: 4528121 (1985-07-01), Matsushita et al.
patent: 4605633 (1986-08-01), De Angelis
patent: 4605634 (1986-08-01), De Angelis
patent: 4788167 (1988-11-01), Mathers et al.
patent: 4855264 (1989-08-01), Mathers et al.
patent: 4957886 (1990-09-01), Mathers et al.

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